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If g on the surface of the earth is 9.8 m/s² , its value at a height of 6400 km is (Radius of the earth = 6400km).

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4.9ms–2

9.8ms–2

2.45ms–2

19.6ms–2

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detailed solution

Correct option is C

ghg=R2(R+h)2

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If g on the surface of the earth is 9.8 m/s2 , its value at a height of 6400 km is (Radius of the earth = 6400km).

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Ready to Test Your Skills?

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If g on the surface of the earth is 9.8 m/s² , its value at a height of 6400 km is (Radius of the earth = 6400km).